buttress thread


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buttress thread

[′bə·trəs ‚thred]
(design engineering)
A screw thread whose forward face is perpendicular to the screw axis and whose back face is at an angle to the axis, so that the thread is both efficient in transmitting power and strong.
References in periodicals archive ?
V-thread pattern induces least von Mises stress, contact pressure and displacement compared with other thread patterns like square, buttress and revers buttress thread under vertical occlusal loading condition.
With their asymmetrical cross-section, buttress threads are best to withstand the shock loads, vibration, and high stresses in rock crushers.
In addition, the higher application torques of modified buttress threads provides resistance to loosening and product leakage.
Fittings can be installed by one person, yet they are of extremely heavy design and include heavy-duty buttress threads so that the fitting may be tightened sufficiently to help prevent leaks under pressure.
The CHD cylinder has buttress threads for bores over 3.